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Fig. 4 | Earth, Planets and Space

Fig. 4

From: Non-volcanic crustal movements of the northernmost Philippine Sea plate detected by the GPS-acoustic seafloor positioning

Fig. 4

Horizontal velocities relative to the Eurasian plate before the Tohoku-oki earthquake in the Kanto district; the red arrows and the brown arrows indicate the velocities at the seafloor sites detected in this paper and by Yokota et al. (2015), respectively, with 90 % CL (ellipses). The terrestrial velocities are estimated using the GEONET sites for the period from January 2008 to July 2009 (blue arrows). The black dotted lines indicate the boundaries of the block, though some boundaries are uncertain (e.g., the PHS-IM and the PHS-IA boundaries). The green regions (a) and (b) indicate the areas for the cross section shown in Fig. 5

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